802.11ac konacno na Mikrotiku

What's new in 6.16 (2014-Jul-17 13:12):

*) 802.11ac support added in wireless-fp package;
*) winbox - fixed random disconnection over encrypted tunnels;
*) l2tp, pptp, pppoe - fixed possible packet corruption when encryption was enabled;
*) ovpn - fixed ethernet mode;
*) certificates - use SHA256 for fingerprinting;
*) ipsec - fix AH proposal and problem when sometimes policy was not generated;
*) snmp - support AES encryption (rfc3826);
*) l2tp server: added option to enable IPsec automatically;
*) poe-out: added power-cycle-ping and power-cycle-interval settings;
*) gps - increased retry duration to 30 seconds;
*) time - on routerboards, current time is saved in configuration on reboot
and on clock adjustment, and is used to set initial time after reboot;
*) sntp - disabling/enabling client was causing dynamic-servers to be ignored
(bug introduced in 6.14);
*) CCR - fixed rare file system corruption when none
of configuration could be changed or some of it disappeared;
*) ipsec - allow multiple encryption algorithms per peer;
*) email - support tls only connections;
*) smb - fixed usb share issues after reboot
*) snmp - fix v3 protocol time window checks;
*) updated timezone information;
*) quickset - added VPN settings for HomeAP mode;
*) latency improvements on CCR devices;

Uglavnom bilo bi lepo imati neki sxt ili basebox na 17-18ghz...24ghz da se pukne link na 3-5km za realnih 300+mbps.

xtraya:


tesko ce to bas moci na 17-24GHz , na fazon "iz ruke ili zasrafis na shipku radi ..." , to je veoma visoka frekvencija , sve je veoma osetljivo kada se postavlja i steluje. Pitanje je i izlazna snaga samog uredjaja i sama antena (SXT pasteta fazon) jer sve lose stvari sxt-a (malo pojacanje antene, zracenje H+V u 180 stepeni uz sve probleme koje to nosi (odbici,ispadanje,prepreke u fresnelovoj zoni itd...)) nadoknadjuje se sa 500mW snage i odlicnom osetljivoscu na RX strani ... princip je na prvi pogled cool, protoci su sjajni, ali djubri kanale samo tako... bas to tako neusmereno na >17 GHz , nisam bas siguran...

Nekako je uvek bilo bolje napraviti sto usmerenije, sa minimalnom potrebnom snagom (i dodati po koji decibel predaje za bolju SNR marginu), sa sto boljom osetljivoscu prijemnika...

Sto tesko? Uz dobar stub i dobro ucentrirane antene itekako je moguce.

SXT zapravo ima antenu uskog snopa (ne vise od 20 stepeni), SAR2 ima antenu zracenja od 90 stepeni.